Replace the splash guard
Got a garbage disposer that spits, um, garbage at you? Forget about replacing the entire unit. You can install a new splash guard (about $10 at a home center) in about 20 minutes. You don’t need any special tools.
If your garbage disposer is hardwired, start by flipping off the circuit breaker. If it plugs in, unplug it. Stack up books or lumber to support the disposer. Then remove the drainpipe and disconnect the quick-connect fitting (Photo 1). Replace the old splash guard with a new one (Photo 2).
The hardest part of reinstallation is hoisting the disposer up and into place with one hand while you try to engage the locking ring with the other. Forget about that. Use our tip in Photo 3.